Joint for pipes and other fluid conveyers and containers



' Nov. 23, 19 2s. 1,607,943

J. CARSCN ET AL JOINT FOR PIPES AND OTHER FLUID CONVEYERS AND CONTAINERS Filed Nov. 4, L925 //VYE/V 702% JAMEs 'CAmso/v GEO/86E LIDDELL Patented Nov. 23,

UNITED STATES PA-TENT. OFFICE;

Jamie's oanson'ann enonen'rmnamg or ooe'rnnrnen, sco'rrnm, Assienons 'ro s'rnwanrs AND LLOYDS, LIMITED, or e aseow; sco'rmmn.

omr ron r ms AND OTHERFLUID coiwEY Rs Ann coiw'ranmns.

Application filed November 4, 1925, Serial No. 63,810, and in Great Britain April 14, 19 25,

Llhis' invention relates to joints for pipes and other fluid conveyors or containers and has for its object to providea joint therefor which shall befluid-sealed and leak-proof hollow of the packing and cause the-lips'on flanges to tighten against the pipes or the like to make a leak-proof joint. Of course. the greater the pressure within the pipe the greater is. the press'ureexerted on the lips ing being held in'place at and around theor flanges and. therefore the tighter the joint. According to'the present inventipna joint for-pipesand other fluid conveyers or containers comprises a flexible packing ring.

, havinga mid portion adapted to cover over and press a-galnst the abuttingends of the pipes or the like and side portions or flanges adapted to press against external. peripheral projections on the pipes or'thelike the packjunction of the pipes or the like by a hous v ing which is made so as to press on the'mid fitted over gm joint of the pipes or the like and disp set} between external peripheral" portion and hold it-tightly over the junction and also to pressthe flanges against-"the pro.-

jections on the pipes or the like. The flexible packing ring, is, preferably,-

of somewhat' M shape' i'ncross section, that is to say,.1t has a. depressed mid portion and hollow angular upstanding side portions or i flanges the space between the angular flanges forming-a peripheral channel or tro'ugh of.

somewhat shape. The hollows in the angular side portions are, preferably, consti-f tuted by grooves of inverted V. formation.

The said M-section packing 'is adapted to-be I projections on the. adjoining ends of, the

's'aidpipes or the like being enclosedby- 'a-v housing which'rholds the pipes or the liketogether .by' engagement with the Said -.pr0 -Q jection's and which also has its interiorpe riph'eral surface shaped to "conform tothe' outer peripheral surface 'of the fM-sect'ion .way annexed drawing in which ,cross section,

flbledjoint-in end elevation; 1

' F 3-is a sectionof the'packing ring with p fp'art u'rperspe'etive.

packing and is ,therefore capable of press -ing the mid portion of'ther 'M-section pack-- ing tightly over the gap between the'ends of the pipes orith'e like and. also of forcing the kside portions or flangesof the M-section pac lngtightlyagainst the aforesaid pro-f jections of; the pipes or the like in this wayv giving a triple sealin or leak pre'ventin effect. When the packng is'subjifited to in ternal pressure the angular flanges or side portions of the packing are forced, by the fluid pressure entering the hollows of the flanges, tightly into the grooves of the housing and also tightly against the projections on the pipes or'th'like and when the pack- 7 ing is subjected to external fluid pressure the mid portion of the packingringis forced by the fluid pressure tightly down on the ends. of the pipes or the like while the an-' gular: flanges are forced against said collars, so that, in' both cases, anabsolutely tight jointis provided. The housingmay con sist of two or inor'eparts so made that when simply drawn face to facerinitialpressure is set up between theuhousing and thepacking; and moreover to obtain initial pressure between the plane side surfaces offi the ring and the. adjacent inn'erv surfaces of the rojections' .on ,the adjoining ends of the pipes '01 the like, the side portions of the packing 'ring are splayed slightly outwards from the cylindrical midportion thereof so-that' the width'of the ring increases from the outer towards the inner periphery and, when the ring is placed between the projections on the pipes, the said side portions exert an'initial pressure on the adjacent innersurfaces of the said projections. f 1 The. invention will now be describeduby' ofexample and-with reference tothe /Fig. 1 isa view of the joint invertical Fig. 2 is acomplete view of-theassein- The packing consists. of a ring 1 having a substantially cylindrical mid portion 2-.p'rovided .with :an 'external angrular-flange 3v at .10 each side; The thicknessof-the flanges 3, parallel to the axis of the .1, increases from the periphery inwards thus. forming a.

central groove 'or annular; channel, the exter or of the; r1ng.' f". -I On" the interior :su'rll.

face of thering two inverted V-shaped circular recesses or grooves 5 are formed so as to leave flexible thin walled side portions as shown at Figure B.

The housing 6, 's made intwo or.m'ore parts such as 6, 6" adapted to be det'achably secured together by means of bolts 7 orotlr erwise, and, is provided with two circular grooves or recesses '8 in its-interior, corresponding in shape to the flanges 3 on the packing ring 1 and made somewhat larger to accommodate," in addition to the flanges 3 of the ring 1, the collars 9 on the pipes 10 and 11. Between these two recesses, the housing 6 has an. annular rib 13 somewhat Y-shaped to correspondv to and bear on the external groove or channel 4 in the packing ring between the flanges 3 thereof.

In joining up the 'two p1pes 10 and 11 the packing ring ris'sine ta-avmiwe iaef the pipe, 10, for example, andis pushed up against the collar 9 thereon. The ring 1 is made a neat fit upon the pipe. Halfof the ring 1 now rojectsIover the end of the pipe 10 and into this} socket or projecting portion the end of the other pipe 11 is inserted till the collar 9 thereon comes up against the packing ring 1 whose length axially is sue as just to prevent the ends of the pipes 10 and 11 contacting when the collar 9 on each ipe is hearing on the sides.

of the till 1; heparts of the housing 6 are place I in position round the packing ring'land'the collars 9 on the pipes, the

outer edges of the recesses 8 in the housing 6 being arranged to rest against the outer faces of the collars 9 on the pipes. When J the parts 6, -6 ,of the housing 6, are being ,the external groove in the ring 1 and,-

.secured together the portion of the housing between the recesses 8 therein is pressed into -efiectinga wedging action, opens out the said roove 4' and causes the plane sides of the ring 1 to bear tightl againstthe adja cent inner surfaces of, ecollarse 9. on'the pipes .10 and 1-1 whereby an initialpressu're is set up between the ring 1 and-the said collars. 1

The flanges 3 of the packing ring 1 are splayed slightly -foutwards from the cylindrical mid portion 2. thereof, ,the width of the ring 1 increasing from the outer towards the inner. periphery thereof,- so that flwhen, the ring 1 ls merely inposition'ibetween the collars 9 on the adjoining ends of the, pipes 10 and-111m initialpressurerisset upbetween thesaid side surfacesof 1 the 'ring'l and the adjaoentin ier surfaces of. the said oollars9. "This ensures the eflicieney of-"the joint nnderlow'pressures.

. The flanges :3 of the packing ring which,"

as before mentioned,- are of inverted V- shape with the hollow sideneXtthe pipes 10 and 11, are now'located in the recesses 8' in the housing 6, a cushion between -and 11 any external fluid which may way between the packing ring 1 and thethe collars 9 and the rib 13 of the housing and'thus permitting a'consi derable amount of flexibility in the alignment of the pipes. 1

The middle cylindrical or substaritially'cy: lindrical portion 2 of the packing ring 1 is pressed tightly between the ends of ther pipes 10 and 11 and the housing 6 over the gap 12 at. the junction of the two pipes and bridges over and covers said gap.-

When the pipes 10 and 11 are under in ternal pressure, any compressed fluid, which may escape at the junction 12 of the pipes,

finds its way into the internal recesses 5 1n the ring 1 and tends to expand or open out the hollow flanges 3 which are stherefore pressed firmly against the collars 9 on the ends of the pipes 10, 11 and against the inner surface of the recesses 8 in the housing 6 and the joint is double-,fluid-sealed, When there is a vacuum inthe pi e; 10

its

housing 6 into the groove 4 of the ring,

will exert an inward pressure on the mid I portion 2. of the ring where it covers the junction 12 of the, pipes, and a lateral and inward pressure on the angular flanges thereby forcing them against the collarswith the result that the pipes; (3) will again be fluid-sealed. j .e

A pipe .joint constructed-ms. above indicated while being equally well adapted to withstand internal or eXternal'pressure, can

also-be inexpensively manufactured and bejoints of thin metallic water pipes-as-these' pipes can be made with'flanges or collars by simply pressing up or swelling the same.

Having now fully described our invention by Let- I what we claim and desire to secure ters Patent is l. A pipe oint comprising aflexible pack ing ring having side portions of wedge like formation and a mid portion adapted to cover-the adjoining ends of the pipes, ahousing for the said packing ring, external pe- ,ripheral projections on the adjoining-pipe ends, and means for holding the pipe ends together by engagement with the said projections, the said housinghaving its inner peripheral surface shaped to conform to the outer peripheral surface of "the said packing ring, being adapted to press the mid portion of, the packing ring down on the saidadioining pipe ends andto press the.

wedge like,sid e portions of the ring against.- the said projections.

2, A pipe joint comprising aflexibleipack-i ing' ring composed' of .a substantially cylindrical mid portiontadaptedto coverthe adjoining pipe ends I and .side portions of wedgel1ke formation, a pair of semi-circular clam ing members constituting a housing for t e packing ring, means for securing the 5 said members together, external peripheral projections on the adjoining pipe ends, and means for holding the pipe ends together by engagement with the said projections, the said clamping members having their inner peripheral surfaces shaped to conform to the outer peripheral surface of the said packing ring, being adapted to press the mid portion packing ring, means for securing the/said members tbgether, external peripheral projections'on the adjoining pipe, ends, and means integral with the said clamping members for holding the pipe ends together by engagement with the said projections. the

peripheral surfaces shaped to conform to the outer peripheral surface of the said packing ring, being adapted to press the mid portion of the packing rig down on the said prejections. v

4. A p pe section, being ,composed of a substantially cylindrical mid portion and side portions of hollow wedge-like formation, a housing for the packing ring, external peripheral projections on the adjoining pipe ends, and means for holding the pipe ends together-bv engagement with the said projections, the said M-section packing ring being fi ted over the adjoining pipe ends between the said pro-' jections and being enclosed by the said hdtls- 'ing, of which the inner peripheral surface is shaped to conform to the outer peripheral surface of the said packing ring 5.; A pipe joint, comprising a flexible paclgingring of somewhat M-shaped cross section,

means forholding the pipeends together by being composed of,a substantially cylindrical 1 mid portion and side portions of. hollow wedge like formation,- a pair of semi-circular for the packing ring, means for securing the said members together. external peripheral projections on the adjoining pipe, ends; and

'engagementwith the said projections, the

.said M-section packing'ring being fittedfoverthe-adjoining pipe ends between the said projections and being enclosed by the said ripheral surface of the said packin said clamping members having their inner adjoining pipe ends and to press the wedgelike side portions of the ring against the said oint comprising a flexiblepacking ring of somewhat Msshaped cross clamping members constituting a housing housing, of which the innerperipheral surface is shaped to conform to the outer pe- 6., A pipe joint, comprising a flexible p ack- 1ng ring ofsomewhat M-shaped cross section, being composed of a substantially cylindrical mid portion and side portions which are ofhpllow wedge-like fornfation, a pair ofsemicircular clamping members consti-' 'tuting a housing for the packing ring, means for securing the said members together, external peripheral projections .on the adjoiningipipe ends, and means integral with the said clamping members for holding the pipe ends together by engagement with the said pro ections, the said M-section packing ring being fitted over the adjoiningpipc ends betpyeen the said projections and being en; 7 c

osed by the said housing, of which the inner peripheral surface is shaped to conform to the outer peripheral surface of the said packing ring.

7. A pipe joint, comprising external peripheral projections on the adjoining pipe ends, a flexible packing ring, of somewhat M-shaped cross section, composed of a substantially cylindrical mid portion and side portions which are of hollow angular formation, the said side portions being splayed slightly outwards from the said cylindrical mid portion so that the width of. the ring increases from the outer towards the inner periphery thereof, 'a pair of seml-circular clamplng members constituting a houslng for the packing ring, means for seeuringthe l said members together, and means integral with the said clamping members for holding the pipe ends together by engagement with the said projections, the said M-section packing ring being fitted over the adjoining pipe ends between the said projections in which position the said side portions ofthe ring I exert an initial pressure on the inner surface of the sai projections, and being enclosed by the said housing of which the inner peripheral surface is shaped lo conform to the outer peripheral surface of the said packing ring.

8. A pipe joint, compris ng a fiexiblepackingrin'g of 'somewh at M-shaped cross section,

'being composedof a substantially cylindrical mid portion and ,side portions which are ofv hollow angular formation and ofwhicli thefplane side surfaces are slightly inclined,

a pair of semi-circular clamping members means for securing the said members together,-means whereby the initial pressure consituting a housing for the packing ring,

of vthe said members'on the packing ring a may be made greater or less, collars on the adjoining pipe'ends, and means integral with the said clampingmembers for holding the pipe ends together byengagement with the said collars. the said M-section packing ring being fitted over the adjoining pipe ends Cal g 2 between the said collars and being enclosed by the said housing, of which the inner peripheral surface is shaped to conform to the enter peripheral surface of the said packing ring.

9. A pipe ,joint, comprising a flexible packing ring of somewhat M-shaped cross section being composed of a substantially cylindrical mid portion and side portions which are of hollow angular formation and of which the plane side surfaces are slightly inclined, a pair of semi-circular clamping members constituting a housing for the packing ring, screw bolts to secure the said members together, flanges on the adjoining pipe ends, and means integral with the said clamping members for holding the pipe ends together. by engagement with the said flanges, the said M-section packing ring being fitted oven the adjoining pipe ends be- I tween the sai flanges and being enclosed by the said he sing, of which the inner peripheral surface is shaped. to conform to the outer peripheral surface ef the said packing ring. g

10. Agpipe joint, comprising flanges on the adjoining pipe ends, a flexible packing ring, of somewhat M-shaped cross section, composed of a substantially cylindrical midportion and side portions which are of hollow. angular formation the said side portions being splayed slightly outwards from the said cylindrical mid portion so that the width of the ring increases from the outer towards the inner periphery thereof, a pair of semi-circular clamping members constituting a housing for the packing ring, screw bolts to secure the said members together, and an annular inwardly projecting lip formed on eachend surface of the said clamping members adapted to engage with the said flanges, the said NI-section packing ring being fitted over the adjoining pipe ends between the said flanges,in;which position the said side portions of the ring exert an initial pressure on the inner surface of the said flanges, and being enclosed by the said housing of which the inner peripheral surface is shaped to conform to the Looms-13 tions exert an initial pressure on the inner outer peripheral surface of the said packing 11. A pipe joint comprisin external peripheral projections on the a joining pipes -nea'r the ends'thereof, a flexible packing ring h i ig side portions of wedgelike. formasurface of the said projections, a housing for thesaid packing ring, and means for holding the pipe ends together by engagementwith the said projections, the said housing having its inner peripheral surface shaped to conform to the outer peripheral surface of the said packing ring, being adapted to press the mid portion of the packing ring down on the said adjoining pipe ends and-to press the wedge-like side portions of the ring against the said projections.

12. In a pipe'joint, a flexible packing ring composed of a substantially cylindrical mid portion, andan exteriorly projecting. flange at each side of the said portion, the flanges being substantially of hollow wedge-shape and having substantially the same internal diameter as the said mid portion, whereby a central groove is formed in the outer periphcry of the packing ring and two circular grooves are provided in the inner periphery of the .ring, each' flange -being splayed slightly outwards from the said cylindrical mid portion in such a manner that the width of the ring increasesfrom the outer towards the inner periphery thereof.

13. Ina pipe joint, a flexible packing ring composed of a substantially cylindrical mid portion, and an exteriorly projecting flange at each side of the said portion, the flanges being substantially of hollow wedge shape and having'substantially the sameinternal diameter as the said mid portion, whereby a 1 central groove is formed in the outer PG-I riphery of the packing ring and two circular grooves of inverted V-section are provided in the inner periphery of the ring,

each flange being spla ed sli htly outwards from the said cy indrica mid ortion in such a manner that the width 0 the ring increases from the outer towards the inner periphery thereof tures.

. In testlmo'nywhereof we afiix our signa- 

